How to integrate JaCoCo Code coverage tool with Maven

I have used Cobertura code coverage tool for one of my recent project and followed the steps mentioned in this link Cobertura Example.

When I have tried to upgrade Java version to 1.8, got some issues due to the usage of Lambda expression. So I am looking for an another code coverage tool. So I choose  JaCoCo

Assume that I have a Maven Java project and some unit test cases. I have given the below snippet from my Maven pom.xml below. Just copy and paste this into the build section and then run your build. After the build is done, then go to below location (target/site/jacoco-ut/) and click on index.html file to view the code coverage report


<plugin>
                <groupId>org.jacoco</groupId>
                <artifactId>jacoco-maven-plugin</artifactId>
                <version>0.7.7.201606060606</version>
                <configuration>
                 <!--  Add it here to exclude it from code coverage analysis -> 
                    <excludes>
                        <exclude>**/model/**</exclude>
                        <exclude>**/test/**</exclude>                        
                    </excludes>
                </configuration>
                <executions>
                    <execution>
                        <id>pre-unit-test</id>
                        <goals>
                            <goal>prepare-agent</goal>
                        </goals>
                        <configuration>
                            <destFile>${project.build.directory}/coverage-reports/jacoco-ut.exec</destFile>
                            <propertyName>surefireArgLine</propertyName>
                        </configuration>
                    </execution>
                    <execution>
                        <id>post-unit-test</id>
                        <phase>test</phase>
                        <goals>
                            <goal>report</goal>
                        </goals>
                        <configuration>
                            <dataFile>${project.build.directory}/coverage-reports/jacoco-ut.exec</dataFile>
                            <outputDirectory>${project.reporting.outputDirectory}/jacoco-ut</outputDirectory>
                        </configuration>
                    </execution>
                    <execution>
                        <id>pre-integration-test</id>
                        <phase>pre-integration-test</phase>
                        <goals>
                            <goal>prepare-agent</goal>
                        </goals>
                        <configuration>
                            <destFile>${project.build.directory}/coverage-reports/jacoco-it.exec</destFile>
                            <propertyName>failsafeArgLine</propertyName>
                        </configuration>
                    </execution>
                    <execution>
                        <id>post-integration-test</id>
                        <phase>post-integration-test</phase>
                        <goals>
                            <goal>report</goal>
                        </goals>
                        <configuration>
                            <dataFile>${project.build.directory}/coverage-reports/jacoco-it.exec</dataFile>
                            <outputDirectory>${project.reporting.outputDirectory}/jacoco-it</outputDirectory>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.19.1</version>
                <configuration>
                    <argLine>${surefireArgLine}</argLine>
                    <excludes>
                        <exclude>**/*IntegrationTest*</exclude>
                    </excludes>
                </configuration>
            </plugin>

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One thought on “How to integrate JaCoCo Code coverage tool with Maven

  1. Pingback: Java 8 + Cobertura maven plugin – net/sourceforge/cobertura/coveragedata/TouchCollector – No class def found error | Bala's Blog

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